The pursuit of health most commonly requires access to health care. One may have chosen to eat poorly, exercise infrequently, and become obese with other medical conditions. If this is same chronically ill person chooses to change his life, he will most likely require access to health care. The chronically ill are often disenfranchised because they have lost jobs or not well educated. They are much more likely not to have the income of their healthy counterparts. It becomes a vicious cycle with a downward spiral. The sicker one becomes the less likely they are to have the means to work and make enough money to afford health care. Without health care, they cannot get the treatment to become healthy and get back to work or living a fulfilled life.
The measure of a great nation should be in its ability to care for its people. A great nation should give its people the access to health care and the chance to live full lives. Access to health care allows a person who (by his own choice or not) has become ill or downtrodden by poor health the chance to gain back his/her vitality. It is an obligation of the rich (the 'haves') to provide health care for the less fortunate (the 'have nots') such that all can pursue their 'right to health.' There is absolutely no greater gift a nation, through its government and the vote of its people, can give than this inalienable right.